Earthquake with magnitude of ML 1.2 on date 20-06-2018 and time 17:48:09 (Italy) in region 4 km W Visso (MC)

A magnitude ML 1.2 earthquake occured in region: 4 km W Visso (MC), on

  • 20-06-2018 15:48:09 (UTC)
  • 20-06-2018 17:48:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.94, 13.04 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Visso MC 4 1107 1107
Preci PG 7 724 1831
Monte Cavallo MC 7 145 1976
Ussita MC 9 444 2420
Sellano PG 10 1079 3499
Castelsantangelo sul Nera MC 11 281 3780
Pieve Torina MC 12 1458 5238
Fiordimonte MC 12 202 5440
Pievebovigliana MC 14 866 6306
Fiastra MC 15 559 6865
Acquacanina MC 15 121 6986
Muccia MC 16 915 7901
Serravalle di Chienti MC 16 1070 8971
Cerreto di Spoleto PG 16 1075 10046
Bolognola MC 17 142 10188
Norcia PG 17 4957 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Foligno (57155 inhabitants)
53 Km NE of Terni (111501 inhabitants)
56 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.2 2018-06-20
15:48:09
42.94 13.04 10 2018-06-20
16:10:28
Sala Sismica INGV-Roma 57992301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-06-20 15:48:09 ± 0.05
Latitude 42.94 ± 0.00
Longitude 13.04 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 57992301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 252
Semi-minor axis of confidence ellipse (meter) 228
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 0.393
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 57992301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-06-20 16:10:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2018-06-20T15:48:23.61 0.3 undecidable manual S 7 0.393 50 0.27 68
IV.SNTG.HHZ. 2018-06-20T15:48:21.23 0.1 undecidable manual S 348 0.3238 50 -0.05 96
IV.EL6.EHZ. 2018-06-20T15:48:17.27 0.6 negative manual P 7 0.393 50 -0.05 47
IV.MMO1.EHZ. 2018-06-20T15:48:17.95 0.1 undecidable manual S 100 0.2167 50 -0.17 95
IV.CSP1.EHZ. 2018-06-20T15:48:17.27 0.3 undecidable manual S 39 0.1961 116 -0.21 71
IV.T1221.EHZ. 2018-06-20T15:48:16.14 0.3 undecidable manual S 240 0.1592 121 -0.06 74
IV.SNTG.HHZ. 2018-06-20T15:48:16.05 0.6 undecidable manual P 348 0.3238 50 -0.08 47
IV.MC2.EHZ. 2018-06-20T15:48:15.07 0.1 undecidable manual S 104 0.1151 129 0.24 96
IV.NRCA.HHZ. 2018-06-20T15:48:14.84 0.1 undecidable manual S 151 0.1196 128 -0.12 98
IV.MMO1.EHZ. 2018-06-20T15:48:14.63 1.0 undecidable manual P 100 0.2167 50 0.33 23
IV.FDMO.HHZ. 2018-06-20T15:48:14.41 0.1 undecidable manual S 21 0.1043 132 -0.09 99
IV.CESI.HHZ. 2018-06-20T15:48:14.87 0.1 undecidable manual S 305 0.116 129 0.02 100
IV.T1221.EHZ. 2018-06-20T15:48:13.26 0.6 positive manual P 240 0.1592 121 0.06 49
IV.CSP1.EHZ. 2018-06-20T15:48:13.91 0.6 positive manual P 39 0.1961 116 -0.03 49
IV.FDMO.HHZ. 2018-06-20T15:48:12.32 0.6 negative manual P 21 0.1043 132 0.1 49
IV.CESI.HHZ. 2018-06-20T15:48:12.46 1.0 undecidable manual P 305 0.116 129 0.04 25
IV.NRCA.HHZ. 2018-06-20T15:48:12.47 0.6 undecidable manual P 151 0.1196 128 -0.01 50
IV.MC2.EHZ. 2018-06-20T15:48:12.75 1.0 undecidable manual P 104 0.1151 129 0.35 23
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.4 0.0002756224 0.1536 AML other m 2018-06-20T15:48:14.87
IV.FDMO.HHN. ML:1.2 0.00017051825 0.2048 AML other m 2018-06-20T15:48:14.59
IV.CESI.HHN. ML:1.4 0.0002972163 0.1408 AML other m 2018-06-20T15:48:15.25
IV.CESI.HHE. ML:1.4 0.00023799285 0.0768 AML other m 2018-06-20T15:48:14.96
IV.NRCA.HNE. ML:1.2 0.00015060645 0.1024 AML other m 2018-06-20T15:48:16.35
IV.NRCA.HNN. ML:1.4 0.0002568742 0.1024 AML other m 2018-06-20T15:48:14.87
IV.NRCA.HHN. ML:1.5 0.00029720415 0.1024 AML other m 2018-06-20T15:48:14.93
IV.NRCA.HHE. ML:1.2 0.00016716745 0.1536 AML other m 2018-06-20T15:48:16.35
IV.T1221.EHN. ML:1 7.2938505E-5 0.1792 AML other m 2018-06-20T15:48:16.28
IV.T1221.HNN. ML:1.2 0.000134177025 0.9216 AML other m 2018-06-20T15:48:12.35
IV.T1221.EHE. ML:0.8 5.27855E-5 0.1408 AML other m 2018-06-20T15:48:16.26
IV.T1221.HNE. ML:1.2 0.0001269059 0.704 AML other m 2018-06-20T15:48:18.18
IV.CSP1.EHN. ML:0.6 2.594538E-5 0.3072 AML other m 2018-06-20T15:48:17.87
IV.CSP1.EHE. ML:0.7 3.4877245E-5 0.1664 AML other m 2018-06-20T15:48:17.83
IV.TERO.HHE. ML:0.7 8.153583E-6 0.4096 AML other m 2018-06-20T15:48:17.32
IV.TERO.HNE. ML:1.8 0.00014532485 0.7552 AML other m 2018-06-20T15:48:18.66
IV.TERO.HNN. ML:1.6 7.7851765E-5 0.96 AML other m 2018-06-20T15:48:20.15
IV.TERO.HHN. ML:0.7 1.1009571E-5 0.256 AML other m 2018-06-20T15:48:28.72
IV.SNTG.HHE. ML:0.8 2.5966625E-5 0.1152 AML other m 2018-06-20T15:48:22.36
IV.SNTG.HNE. ML:1.5 0.0001353976 0.9856 AML other m 2018-06-20T15:48:27.65
IV.SNTG.HHN. ML:0.7 2.1519125E-5 0.128 AML other m 2018-06-20T15:48:22.43
IV.SNTG.HNN. ML:1.6 0.000162408 0.7424 AML other m 2018-06-20T15:48:30.62
IV.EL6.EHE. ML:2 0.0003447923 2.6624 AML other m 2018-06-20T15:48:30.11
IV.EL6.EHN. ML:1.9 0.00025262305 2.7776 AML other m 2018-06-20T15:48:30.02
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download